Archives

Real-time services:

– The GOOSE flow, as defined in IEC 61850-8-1. which allows the IED to exchange data “horizontally” between machine rooms, or “vertically” between the process level and the machine room level.

In particular, status signals and trip signals are usually also used for interlocking. These information flows are usually transmitted via the station bus and/or the process bus.

– The SV (Sampled Value) flow is defined in IEC 61850-9-2 and is used to transmit voltage and current samples.

This flow is usually on the process bus, but can also flow via the station bus, e.g. for busbar protection, centralised protection and control, and phase measurement.

Generic Object-Oriented System Events (GOOSE)

– Standardised horizontal communication

– Replaces hard wiring between relays and controllers

– GOOSE is used to broadcast events between relays in a substation.

– The GOOSE communication link between relays is monitored and controlled by cyclically sending data.

– Ethernet technology provides a fast and reliable station bus for data transfer.

Sample-value-based merging unit/repeater

– Merge unit: The interface between the transformers (both conventional and non-conventional) and the relays is via a device called a merge unit (MU) or a relay with merge unit functionality.

The interface between transformers (both conventional and non-conventional) and relays is achieved by means of a device called a Merge Unit (MU) or a relay with MU functionality for centralised protection.

– The MU is defined in IEC 61850-9-1 as an interface unit that accepts current transformers (CTs)/voltage transformers (VTs) and binary inputs (BIs), and generates multiple time-synchronised serial single inputs.

and generates multiple time-synchronised serial unidirectional multipoint digital point-to-point outputs to provide data communication through the logical interface.

– IEC 61850-9-2LE or IEC 61869-9 defines 4 kHz (in a 50 Hz network) and 4.8 kHz (in a 60 Hz network) for the raw measurements.

4.8 kHz (in 60 Hz networks) sampling frequencies for the raw measurements to be sent to the user (the CPC unit or in some cases the relay protection device).

This simulates the signal from the transformer or sensor. In this way, the relay or CPC unit can run its protection and measurement functions without any adjustments.

Communication-specific mapping

– The abstract data and object model of IEC 61850 defines a standardised way of describing power system devices so that all relays can display data using the same structure that is directly related to their power system function.

– The Abstract Communication Service Interface (ACSI) model of IEC 61850 defines a set of services and responses to those services so that all IEDs operate in the same way from a network behaviour perspective.

– In addition to the mapping to the application layer, Section 8.1 defines profiles that depend on the “other” layers of the communication stack for the services provided.

Sampled values and GOOSE applications are mapped directly into Ethernet data frames, thus eliminating any intermediate layer processing;

The MMS Connection Oriented Layer can be run over TCP/IP or ISO; all data is mapped into Ethernet data frames of type “Ethernet Type” or “Ethernet Type”.

ISO and GSSE messages are of data type “802.3”.

ABB’s 3BSE000470R1 PFBK 165 PROCESSOR BOARD, as a processor board, typically offers a range of features and benefits.

These features help to meet the needs of various industrial automation and control systems. The following are some of the possible features:

High-performance computing power: The processor board may be equipped with a high-performance processor capable of performing complex control algorithms and data processing tasks for fast response and efficient operation.

Rich interface options: The processor board usually provides a variety of communication interfaces, such as Ethernet, serial port, fieldbus, etc., for data exchange and communication with other devices or systems.

Modular design: The adoption of modular design makes the processor board easy to install, configure and maintain.

At the same time, the modular structure also provides flexibility and expandability, allowing functional modules to be added or replaced as needed.

Reliability and stability: ABB, as a well-known power and automation technology company, its products usually excel in terms of reliability and stability.

This processor board may undergo strict quality control and testing to ensure stable and reliable operation even in harsh industrial environments.

Ease of use and configurability: The processor board may be equipped with an intuitive user interface and powerful configuration tools that allow users to easily set parameters, troubleshoot and monitor the system.

Compatibility and Integration: The processor board may be compatible with a wide range of ABB and other vendors’ equipment and systems for easy integration into existing automation solutions.

The types of communication interfaces supported by ABB’s 3BSE000470R1 PFBK 165 PROCESSOR BOARD may vary depending on the specific product version and configuration.

Typically, ABB’s processor boards support a variety of communication interfaces to meet the needs of different application scenarios.

The following are some common types of communication interfaces, one or more of which may be supported by this processor board:

Ethernet interface (Ethernet): Used to connect to a local area network (LAN) or wide area network (WAN) for high-speed data communication and remote access.

Serial communication interfaces (Serial): such as RS-232. RS-422. RS-485. etc., for point-to-point serial communication with other devices or systems.

Fieldbus interface: such as PROFIBUS, Modbus, CAN, etc. It is used to connect devices and systems in the industrial field for real-time data exchange and control.

USB interface: used to connect USB devices, such as storage devices, keyboards, mice, etc., to facilitate data backup and device debugging.